Ben 10 (2005)

Ten-year-old Ben Tennyson stumbles upon a strange device that grants him the ability to transform into ten extraordinary alien heroes, each equipped with unique powers. Embracing this newfound capability, Ben feels compelled to use his gifts for good, combating villains and protecting those in need. However, the young hero also enjoys some playful antics, proving that with great power comes both responsibility and the joy of being a kid.